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▪ An improvement has been introduced to the FSI interface which provides increased stability of coupled simulations with strong fluid-structure interaction.
▪ The functionality “Filling of hollow structures” offered in the FSI section has been improved to achieve an increased reliability and completeness of the filling process particularly when structural erosion occurs.
▪ An erroneous check concerning the usage of B1D for multiple charges has been fixed. The error entirely prevented simulation of multiple charges.
▪ The updated package differs from the originally published package only with respect to the executable programs in /exe.

▪ Version 3 of the co-simulation interface for fluid-structure-interaction (FSI) has been implemented into the LS-DYNA user-subroutine dyn21.f/loadud. This interface permits the coupled simulation of explosively loaded structures with LS-DYNA and the APOLLO Blastsimulator V2024.2.

▪ LS-DYNA models can be used for a coupled LS-DYNA/APOLLO simulation without any formal modifications. The interface implemented in dyn21.f/loadud provides an automatic identification of the free surfaces of the LS-DYNA model (coupling surfaces) and automatically updates the topology of the coupling surfaces if element erosion occurs.

▪ Compiled object files of dyn21.f and readily linked versions of LS-DYNA are provided for Windows and Linux together with the APOLLO Blastsimulator software (LSDYNA license must be available for using the provided LS-DYNA executables).

Further Information is provided in the downloadable PDF.